Hollywood star Ryan Reynolds has made a hilarious video in which he gives ‘leap year’ baby Arlene Manko her "first legal alcoholic drink."

The twist is that Arlene is 84 years old. But since she was born on February 29, which occurs only once every four years, this is technically her 21st birthday, and by that logic, enters "legal drinking age".

In a hilarious video that the Deadpool actor shared on Instagram, Arlene even remarks that she got married at 5 years of age and had kids when she was 10. She added, “I had seven kids in 10 years, do you think sometimes I didn't want to drink?”

The octagenarian then proceeds to ‘legally’ have her first alcoholic sip, that was given to her by Ryan Reynold's Aviation Gin company.

Reynolds posted the video on his Instagram with the caption, “Arlene Manko was born in 1936. But tomorrow, she'll turn 21 years old. #HappyLeapDay” with Arlene saying that she’s finally ready for it!

The actor’s last film was 6 Underground, and he’s presently working on two comedy outings Free Guy and The Hitman's Wife's Bodyguard.